Polar M400 vs. Fitbit One vs. Acer Liquid Leap vs. Amazfit GTR

 
M400
One
Liquid Leap
GTR
 PolarM400Remove Buy NowFitbitOneRemove Buy NowAcerLiquid LeapRemove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$200$100$90$199
Release2014201220152019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
Sleep
Steps
Swim

Battery

Duration8 hours to 30 days10-14 days5 to 7 days24 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/a128 x 32454 x 454
Sizen/an/a1 inch1.39 inches
Touch
Typen/aOLEDOLEDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMSplast ResistantIPX45 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aBuild-in
Apps
Music

All Wearables